NBC has confirmed two-hour editions of "Dateline NBC" and "The Celebrity Apprentice" will take over the night effective immediately.

The freshman drama will instead shift to Saturdays at 8:00/7:00c starting April 18.

"Kings" posted an invisible 1.1 rating among adults 18-49 on Sunday, falling short of even a repeat of "Extreme Makeover: Home Edition" on ABC (2.2 rating). The series has yet to climb out of fourth place since its March 15 launch.

Eight installments of the show's 13-episode order still have yet to air.